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How to cut in 3d model OBJ

by Uneeb Khan

In this tutorial, you will learn how to cut an object in a 3D modeling OBJ by using a knife tool.

  1. Open the file in the 3D modeling software.
  2. Select the knife tool.
  3. Click and drag the mouse over the object to be cut.
  4. release the mouse button to make the cut.

What Is a 3d Model OBJ?

A 3d model OBJ is a file format that stores three-dimensional data. It’s an industry standard for creating and exchanging 3d models.

OBJ files are usually created with 3d modeling software, such as Blender or Maya. And they can be opened in a variety of different software applications, including 3ds Max, Cinema 4D, and Unity.

Preparing to Cut a 3d Model OBJ

Now that you have the 3d model open in your software of choice, it’s time to get started on the cutting. As always, it’s best to work on a copy of the original, so duplicate the model before going any further.

Once you have a copy of the model, you’ll want to hide all but one of the object’s layers. This will make it easier to see what you’re doing as you cut. Now is also a good time to resize and move the object to fit better in your workspace.

Cutting Tools for 3d Model OBJ

There are a few different tools you can use to cut in 3d model OBJ.

  • The first is a simple pair of scissors. This is a good option if you’re just starting out and want to use the basic concept of cutting in a 3d model OBJ.
  • Another option is a scalpel. This is a more precise tool, which makes it good for detailed cuts.
  • Finally, there’s the die-cutter. This is the most precise option, and it’s good for cutting out very intricate shapes.

Step-by-Step Instructions for Cutting a 3d Model OBJ

Now that you have your 3D model OBJ ready to be cut, here’s a step-by-step guide to help you get started. First, open the OBJ file with 3D modeling software such as Blender. Once opened, select the parts of the model you wish to cut: usually this will involve selecting faces or edges. Then, hit “ctrl + x” or go to the Edit menu and select “Cut Selected”.

Designing Drafting

To make sure your cuts are smooth and accurate, you can use one of the built-in tools in the modeling software. Try out “Subdivide” or “Loop Cut” for best results. Once you’re happy with how everything looks, it’s time to save your work! Head over to File > Export > Wavefront (OBJ) and pick a name for your file before hitting save. And that’s it—you’ve successfully created a 3D model OBJ that’s been cut into pieces!

Troubleshooting Common Issues When Cutting a 3d Model OBJ

If you’re having trouble cutting in 3D model OBJ, one of the common issues you might run into is that your model becomes too complex. This can happen when the cuts intersect with each other and the computer struggles to render them.

To prevent this, it’s important to use CAD Drafting Services software to plan out your cuts before you start cutting. This will help ensure that your cuts remain separate and don’t intersect in unexpected ways. Additionally, make sure that the resolution of your 3D model OBJ is high enough for you to make clean and accurate cuts.

Finally, if there are any areas where you need more precision or difficult curves, try using a smaller tool bit rather than a larger one. This can help reduce errors and make cutting much easier.

FAQs on Cutting 3d Model OBJ

You may be wondering what the best way is to cut a 3d model in OBJ format. The answer is: it depends. It depends on the size of the object and what you want to do with the resulting segments.

If you want to cut off a portion of an object, the simplest approach is to use a slicing tool. You can also use other modeling software, such as Blender or 3ds Max, that can manipulate objects and include 3d cutting tools.

Alternatively, if you want to export multiple objects from a single file, there are programs that can split an OBJ into separate pieces. Meshlab is one example program that can break down large files into smaller chunks for individual export.

In addition, some 3D printers have slicing software that includes a “cut” feature, allowing you to accurately select pieces of your model prior to printing them out in separate parts.

The best way to cut a 3d model in OBJ format depends largely on the complexity of your project and the software available at your disposal. Experiment with different tools and methods until you find a workflow that works best for you.


In conclusion, you can use the Knife tool to precisely cut a 3D Modeling in an OBJ file. You can use it to make small or large cuts, depending on your needs. Remember to use the Move tool to reposition the object after you make a cut.


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